12050661572 has 12 divisors (see below), whose sum is σ = 21658621740. Its totient is φ = 5862483936.

The previous prime is 12050661563. The next prime is 12050661577. The reversal of 12050661572 is 27516605021.

It can be written as a sum of positive squares in 2 ways, for example, as 5576206276 + 6474455296 = 74674^2 + 80464^2 .

It is a super-2 number, since 2×12050661572² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12050661577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40711547 + ... + 40711842.

It is an arithmetic number, because the mean of its divisors is an integer number (1804885145).

Almost surely, 2^12050661572 is an apocalyptic number.

It is an amenable number.

12050661572 is a deficient number, since it is larger than the sum of its proper divisors (9607960168).

12050661572 is a wasteful number, since it uses less digits than its factorization.

12050661572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81423430 (or 81423428 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 12050661572 in words is "twelve billion, fifty million, six hundred sixty-one thousand, five hundred seventy-two".